Increase workflow e2e test timeout threshold (#1968)
Increase workflow e2e test timeout threshold (#1968)

* debug grpc failed

* update

* update

* update

* update

* scale up workflow threshold
sql-machine-learning/sqlflow,sql-machine-learning/sqlflow,sql-machine-learning/sqlflow,sql-machine-learning/sqlflow,sql-machine-learning/sqlflow,sql-machine-learning/sqlflow